EF迁移无法删除迁移 [英] EF Migrations not able to remove migration

问题描述

编辑:我删除了数据库. 它仍然告诉我迁移已应用.我不买你的狗屎，EF ...

I dropped the database. It still tells me the migration is applied. I don't buy your shit, EF...

我有5个迁移，但第5个是偶然创建的.它不包含任何更改(Up和Down方法为空).我不假思索地将其应用于数据库.

I have 5 migrations, but the 5th has been created on accident. It doesn't hold any changes (Up and Down methods are empty). Without thinking I appied it to the database.

现在，当我运行dotnet ef database update migration4时，它告诉我它成功还原了迁移#5，并且表__EFMigrationsHistory没有显示迁移#5的条目.尝试使用dotnet ef migrations remove删除它时，它告诉我迁移#5仍适用于数据库，并且__EFMigrationsHistory中的条目显示为备份.

Now when I run dotnet ef database update migration4 it tells me it successfully reverted migration #5 and the table __EFMigrationsHistory doesn't show an entry for migration #5. Upon trying to remove it with dotnet ef migrations remove it tells me that migration #5 is still applied to the database and the entry in __EFMigrationsHistory shows back up.

使用dotnet ef database update migration3回滚到迁移#3时，它确实从迁移#4中删除了更改，并从__EFMigrationsHistory表中删除了条目.

When rolling back to migration #3 with dotnet ef database update migration3 it does remove the changes from migration #4, and removes the entries from the __EFMigrationsHistory table.

现在，当尝试删除时，它只是重新应用所有迁移.恢复初始迁移时也是如此.

Now, when trying to remove, it just reapplies all the migrations. Same for reverting back to initial migration.

有什么建议吗?我不知道从哪里开始.我是否需要重做整个数据库和/或迁移?我尝试覆盖优先迁移#5，但dotnet ef migrations add不接受参数-f或--force.

Any suggestions? I have no idea where to begin. Do I have to redo the whole database and/or migrations? I tried overriding migration #5 but dotnet ef migrations add doesn't accept the parameters -f or --force.

推荐答案

更好的方法是 转到

PM删除迁移

PM Drop-DataBase

PM Drop-DataBase

或在解决方案中删除您的迁移文件夹探索并创建新的迁移 这将使您的全部5次迁移变成一次迁移

or delete your migration folder in your solution explore and create a new migration this will make your all 5 migration into one migration

PM添加迁移

PM更新数据库

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